<template>
  <div>
    <el-card class="box-card">
      <div slot="header" class="clearfix header-box">
        <span>文章分类</span>
        <el-button type="primary" size="mini" @click="addVisible = true"
          >添加分类</el-button
        >
      </div>
      <!-- 表格区域 -->
      <el-table :data="cateList" style="width: 100%" dorder stripe>
        <el-table-column type="index" label="序号" width="100">
        </el-table-column>
        <el-table-column prop="cate_name" label="分类名称"> </el-table-column>
        <el-table-column prop="cate_alias" label="分类别名"> </el-table-column>
        <el-table-column label="操作">
          <template v-slot="scope">
            <el-button
              type="primary"
              size="mini"
              @click="showEditDialog(scope.row)"
              >修改</el-button
            >
            <el-button type="danger" size="mini" @click="del(scope.row.id)"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </el-table>
    </el-card>
    <!-- 添加分类的对话框 -->
    <el-dialog
      title="添加文章分类"
      :visible.sync="addVisible"
      width="35%"
      @closed="onAddClosed"
    >
      <el-form
        :model="addForm"
        :rules="addRules"
        ref="addRef"
        label-width="80px"
      >
        <el-form-item label="分类名称" prop="cate_name">
          <el-input v-model="addForm.cate_name"></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="cate_alias">
          <el-input v-model="addForm.cate_alias"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button size="mini" @click="addVisible = false">取 消</el-button>
        <el-button size="mini" type="primary" @click="addCate">添 加</el-button>
      </span>
    </el-dialog>

    <!-- 编辑文章分类 -->
    <el-dialog title="修改文章分类" :visible.sync="editVisible" width="35%">
      <el-form
        :model="editCateForm"
        :rules="addRules"
        ref="editCateFormRef"
        label-width="80px"
      >
        <el-form-item label="分类名称" prop="cate_name">
          <el-input v-model="editCateForm.cate_name"></el-input>
        </el-form-item>
        <el-form-item label="分类别名" prop="cate_alias">
          <el-input v-model="editCateForm.cate_alias"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button size="mini" @click="editVisible = false">取 消</el-button>
        <el-button size="mini" type="primary" @click="editCate">修改</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "ArtCate",
  data() {
    return {
      cateList: [],
      addVisible: false,
      editVisible: false,
      editCateForm: {},
      addForm: {
        cate_name: "",
        cate_alias: "",
      },
      addRules: {
        cate_name: [
          { required: true, message: "请输入分类名称", trigger: "blur" },
          {
            pattern: /^\S{1,10}$/,
            message: "分类名必须是1-10位的非空字符",
            trigger: "blur",
          },
        ],
        cate_alias: [
          { required: true, message: "请输入分类别名", trigger: "blur" },
          {
            pattern: /^[a-zA-Z0-9]{1,15}$/,
            message: "分类别名必须是1-15位的字母数字",
            trigger: "blur",
          },
        ],
      },
    };
  },
  methods: {
    async initCateList() {
      const { data: res } = await this.$http.get("/my/cate/list");
      if (res.code !== 0) return this.$message.error(res.message);
      this.cateList = res.data;
    },
    onAddClosed() {
      this.$refs.addRef.resetFields();
    },
    addCate() {
      this.$refs.addRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post(
          "/my/cate/add",
          this.addForm
        );
        if (res.code !== 0) return this.$message.error(res.message);
        this.$message.success(res.message);
        this.addVisible = false;
        this.initCateList();
      });
    },
    del(id) {
      this.$confirm("此操作将永久删除该文件, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(async () => {
          const { data: res } = await this.$http({
            url: "/my/cate/del",
            method: "DELETE",
            params: { id },
          });
          if (res.code !== 0) return this.$message.error(res.message);
          this.initCateList();
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除",
          });
        });
    },
    showEditDialog(obj) {
      console.log(obj);
      this.editCateForm = { ...obj };
      // 3. 展示对话框
      this.editVisible = true;
    },
    // 修改分类
    editCate() {
      // 1. 表单预验证
      this.$refs.editCateFormRef.validate(async (valid) => {
        if (!valid) return;

        // 2. 发起请求
        const { data: res } = await this.$http.put(
          "/my/cate/info",
          this.editCateForm
        );
        // 3. 修改失败
        if (res.code !== 0) return this.$message.error(res.message);
        // 4. 修改成功：提示用户、关闭对话框、刷新列表数据
        this.$message.success(res.message);
        this.editVisible = false;
        this.initCateList();
      });
    },
  },
  created() {
    this.initCateList();
  },
};
</script>

<style lang="less" scoped>
.header-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
</style>
